Online thickness measurement system for ultra-wide PC sheet

Abstract

The invention relates to an online thickness measurement system for an ultra-wide PC sheet. The system comprises a thickness measurement device and a thickness change monitoring device, wherein the thickness measurement device is installed on a PC sheet production line, a probe of the thickness measurement device is in a detection mouth, the thickness change monitoring device is installed on the PC sheet production line and is in front of the thickness measurement device, the thickness change monitoring device comprises a press arm, a press roller, and an air cylinder, a fixed end of the pressarm is hinged on an installation board through a rotary shaft, the installation board is fixed on a cross beam of a PC sheet production line rack, the press roller is installed on an free end of thepress arm, a piston rod of the air cylinder is hinged with the free end of the press arm, an air cylinder shell is fixed on the cross beam through a hinged base, one end of the rotary shaft extends out of the installation board and is provided with a large chain wheel circumferentially in a fixing manner, a chain wheel shaft is matched on the installation board through a bearing in a sliding manner at the side of the rotary shaft, one end of the chain wheel shaft is provided with a small chain wheel circumferentially in a fixing manner, a chain is arranged between the large chain wheel and thesmall chain wheel and is used for transferring power, the other end of the chain wheel shaft is connected with an angle sensor, and the angle sensor feeds back a transmission signal to the thicknessmeasurement device.

Description

technical field [0001] The invention relates to the field of PC sheets, in particular to an online thickness measuring system for ultra-wide PC sheets. Background technique [0002] PC sheet, also known as polycarbonate sheet, is an amorphous, odorless, non-toxic, highly transparent colorless or slightly yellow thermoplastic engineering plastic. PC sheet is obtained due to its excellent physical, mechanical and thermal properties. Rapid development. At present, the width of ordinary PC sheets is usually about 1m. The width of the production line of PC sheets is relatively small, and there is no special thickness gauge. Usually, the produced PC sheet products are measured manually, and then according to The thickness deviation of the manual measurement manually adjusts the size of the die lip of the mold, thereby changing the product thickness of the PC sheet. This measurement method must stop the production line to adjust the die lip size of the mold, and the degree of auto...

AI Technical Summary

Problems solved by technology

At present, the width of ordinary PC sheets is usually about 1m. The width of the production line of PC sheets is relatively small, and there is no special thickness gauge. Usually, the produced PC sheet products are measured manually, and then according to The thickness deviation of the manual measurement manually adjusts the size of the die lip of the mold, thereby changing the product thickness of the PC sheet. This measurement method must stop the production line to adjust the die lip size of the mold, and the degree of automation is low. Moreover, manual measurement is used. The efficiency of the method is low, and the thickness change of the PC sheet cannot be monitored in real time, which may easily cause a high reject rate of the PC sheet.

In the production line of ultra-wide PC sheets, there are hundreds of adjustment screws for large and wide molds, and it is obviously very difficult to adjust manually. Therefore, a thickness measurement system that can be applied to the production of ultra-wide PC sheets is urgently needed.

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